No Hub Is Necessary With This Smart Wifi Garage Door Opener Remote, And Ifttt. Product Details A Smart Add-on for your Existing Garage Door Opener - Simply add this smart wifi controller to your garage door opener, you can open and close your garage door from anywhere at any time with your smartphone, using free Smart Life app. Compatible with Amazon Alexa, Google Home and Iphone Siri - When paired with the Amazon Alexa or Google Assistant, the smart door opener gives you hands-free voice control over your home. It also works with iPhone Siri, or even on smart watches PLEASE TEST COMPATIBILITY BEFORE ORDER by taking a wire with both ends stripped or a straightened-out paper clip and put each end to the same terminals as the wall button wires are terminated to. If the door closes or opens, this smart controller will work with your garage door opener. Or you can also check "Application Guide" PDF file in Technical Specification part of item detail page for full compatibility incompatibility model lists. Installation has never been easier ? With only two wires, positive and negative connect to your garage door opener motor, set up the controller to wifi connection. You can make your garage door smart in just a few simple steps. Share with your families and get notifications at any time ? The smart controller allows you to setup multiple users, and you will get notified in real-time on who and when the garage door open or close. You can also set time schedule to open/ close your door at certain time. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.